Help please! Science!

Answer:

the answer is more surface area

Explanation:

i took the quiz and got it right

More surface area will help to increase the rate of dissolving salt in water.

Dissolution is a process in which a substance is dissolved totally in a solvent or water. It is a process solute dissolve in solvent.

Therefore, More surface area will help to increase the rate of dissolving salt in water.

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Answer:

Group 1

Explanation:

The alkali metals are the most reactive metals found on the periodic table

In a periodic table, the most reactive metals are found in Group 1, the first column on the left. (option a)

The most reactive metals are found in Group 1, which is the first column on the left side of the periodic table. Group 1 is also known as the alkali metals. These metals include elements like lithium (Li), sodium (Na), and potassium (K). Alkali metals are highly reactive because they have only one electron in their outermost energy level.

This means they are eager to lose that electron and achieve a stable electron configuration, which makes them more likely to engage in chemical reactions.

As we move down Group 1, the reactivity increases because the outermost electron is farther from the positively charged nucleus, making it easier to lose.

Hence the correct option is (a).

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Answer:

For macroscopic objects, we use units such as grams and kilograms to state their masses, but. There will not be much error if you estimate the mass of an atom by simply. to what we did for our hypothetical example, but the percentages are different: Add two atomic masses of carbon and six atomic masses of hydrogen:

Explanation:

Answer:Thermal energy is added or transferred

Explanation:

Answer:

fossil fuels are composed of Carbon.

Answer: Carbon

Explanation:

Answer:

force F is weaker than force N

Answer:

its less then 8 N :)

Answer:

5N

Explanation:

Because if it moves to the right, that means F is weak and 6N is STRONK

A useful hypothesis is one that can guide the design of an experiment. The correct option is C.

It is possible to create fresh hypotheses and experiments that more closely match the results of the initial studies' observations. A hypothesis is formulated to explain an observation, and an experiment is created to test it. The experiment's findings might or might not support the hypothesis.

Negative results do not necessarily imply that the hypothesis is invalid. It implies that there must be another connection between the variables. To accomplish this, a new theory and experiment must be created in order to better account for the observations.

Therefore, a useful hypothesis is one that can guide the design of an experiment. The correct option is C.

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Answer: If in some sort of survival situation this might be of some help if its not then im not sure

1. Fire starter it is always handy to keep some sort of object that can help with warmth like a lighter matches or flint

2. A first aid kit would also be extremely helpful in case of injury it carries multiple different types of ways to clean a wound and bandage it properly

3. a Compas map or some sort of navigational device would be helpful in case you got lost

4. A phone or any way of communication would be helpful

5. Layers of clothing would be great or some sort of clothing fit for the climate you are in warm insalated clothing for winter and light clothing for heat

6. Rope or cords can be used for many things in the wild much like traps keeping your items or food off of the ground at out of the reach of animals

7. Water carrier and or any sort of water filtration device it is best to keep you from getting dehydrated.

8. A light source like a flashlight  

9. Bug spray most insects can carry diseases like mosquitos and malaria

10. Any sort of survival knife bone saw or machete anything that can cut up animals or wooded areas are very helpful

11. Blankets they are very useful in keeping you warm out in the elements

12. Tarps they are best at keeping things dry

13. Batteries and charging devices are also very helpful

14. weapons like guns bow and arrows or knives are also useful

15. Burnable materials like paper cloth and such are useful for starting fires

16. meat is a very good source of protein and can be used to help keep the calorie intake for your body steady

17. berries are good for the sugar intake and as well as the jucie and water stored inside

18.  beans are highly nutriocis they hold calcium and iron and can be dried up and stored for later needs

19. Fish it has omega-3 fatty acids which are healthy for your heart and it is high in vitamin b-12

20. oats they lower cholesterol levels and carries essential vitamins needed to keep the body healthy

Answer:

Heat and pressure

Explanation:

Answer:

The SI unit of pressure is the pascal (Pa), which is equal to one Newton per meter squared (N/m2).

Explanation:

Answer:

All of them are correct

Explanation:

Explanation:

the international system of unit of the aside from the branch system International is a unit is is the metric system used in Sin industries and medicine

Answer:

Metric system

Explanation:

Also known as SI system